Based on Weaverfish's B-17s (he made many versions, I combined some of them into one) this B-17 has 4 working turrets, a working bomb bay with 8 bombs and a working bombing sight made by Weaverfish. The top turret, ball turret and front turret are made by me, the top and ball turrets have sights while sadly I couldn't make one for the front turret.

Controls:
AG1 + VTOL - Flaps
AG2:
Bombing sight (VTOL)
Front Turret (VTOL for vertical rotation, Trim for horizontal)
AG3 - Autopilot (once you turn this on it's recommended to turn AG8 off)
AG4 - Bomb bay doors (VTOL down to open)
AG5 Ball turret (at the belly of the plane)(VTOL for vertical rotation, Trim for horizontal rotation)
AG6 - Top Turret (VTOL for vertical rotation, Trim for horizontal rotation)
AG7 - Tail turret (VTOL for vertical rotation, Trim for horizontal rotation)
CAM1 - Bombsight
CAM2 - Scouting look out from the front of the plane
CAM3 - Top Turret sight
CAM4 - Tail Turret sight
CAM5 - Ball Turret sight

Weaverfish's guide for bombing:
"Bombsight (cam1) requires you to choose your desired bombing altitude, ranging between 12,000 ft up to 20,000 ft.

Let's say you wanted to bomb at 14,000 ft. First, takeoff and gain altitude so that you are roughly at 14,000. Using the trim dial on the right, trim down until the marker is aligned to the 14. When you reach maximum speed, the bomber should level off perfectly maintaining 14,000.

The left dial shows the bombsight angle setting, so you will want to act 2 and vtol down until the marker aligns perfectly with your chosen trim setting, in this case, 14.

Hit act3 to activate autopilot mode for the bombing run. Act 4 and vtol down controls the bomb bay doors.

If you are flying absolutely level at 14,000 ft, with the bombsight scoped in correctly, you should be able to easily hit whatever you want. Enjoy!"

Original plane by Weaverfish
Turrets (except for the tail turret) by BMilan